Current Transducer LA 150-P
For the electronic measurement of currents: DC, AC, pulsed, mixed,
with a galvanic isolation between the primary circuit (high power) and
the secondary circuit (electronic circuit).
I
PN
= 150 A
Preliminary
Electrical data
I
PN
I
P
R
M
150
A
0 .. ± 200
A
T
A
= 70°C
T
A
= 85°C
R
M min
R
M max
R
M min
R
M max
with ±15V @± 200
A
max
0
30
0
15
Ω
Secondary nominal current
75
mA
Conversion ratio
1 : 2000
Supply voltage (± 5 %)
± 15
V
Current consumption
app 16 +
I
SN
mA
R.m.s. voltage for AC isolation test, 50/60Hz,1mn
2.5
kV
Primary nominal current
Primary current, measuring range
Measuring resistance
Features
•
Closed loop (compensation) current
transducer using the Hall effect
•
Printed circuit board mounting
I
SN
K
N
V
C
I
C
V
d
Advantages
Accuracy-Dynamic performance data
ε
X
L
I
O
I
om
I
OT
t
r
di/dt
f
Accuracy @
I
PN
,
T
A
= 25°C @± 15V (± 5 %)
<±1
Linearity (0 .. ±
I
PN
)
± 0.25
Electrical offset current @I
P
= 0, @T
A
= 25°C Max. ± 0.2
Residual current @
I
P
= 0,
after an excursion at 1x
I
PN
Max.± 0.15
Thermal drift of
I
O
± 0.005
Response time @ 90% of
I
P
<1
di/dt accurately followed
> 200
1)
Frequency bandwidth (- 1dB)
DC .. 150
% of
I
PN
% of
I
PN
mA
mA
mA/K
µs
A/µs
kHz
•
•
•
•
•
•
•
Excellent accuracy
Very good linearity
Low temperature drift
Optimized response time
Wide frequency bandwidth
No insertion losses
High immunity to external
interference
•
Current overload capacity
Applications
•
AC variable speed drives and servo
•
•
•
motor drives
Static converters for DC motor drives
Battery supplied applications
Uninterruptible Power Supplies
(UPS)
Switched Mode Power Supplies
(SMPS)
Power supplies for welding
applications
General data
T
A
T
S
R
S
m
Notes :
1)
Ambient operating temperature
Ambient storage temperature
Secondary coil resistance
Mass
EN 50178 approval pending
- 10 .. + 80 °C
- 15 .. + 85 °C
80
Ω
25
g
•
•
Derating is needed to avoid excessive core heating at high frequency.
010118/2
LEM Components
www.lem.com
Microcontroller MCU
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EEWORLD
